Optimal. Leaf size=62 \[ -\frac{x^2 f^{a+b x^2}}{b^2 \log ^2(f)}+\frac{f^{a+b x^2}}{b^3 \log ^3(f)}+\frac{x^4 f^{a+b x^2}}{2 b \log (f)} \]
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Rubi [A] time = 0.0628613, antiderivative size = 62, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.154, Rules used = {2212, 2209} \[ -\frac{x^2 f^{a+b x^2}}{b^2 \log ^2(f)}+\frac{f^{a+b x^2}}{b^3 \log ^3(f)}+\frac{x^4 f^{a+b x^2}}{2 b \log (f)} \]
Antiderivative was successfully verified.
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Rule 2212
Rule 2209
Rubi steps
\begin{align*} \int f^{a+b x^2} x^5 \, dx &=\frac{f^{a+b x^2} x^4}{2 b \log (f)}-\frac{2 \int f^{a+b x^2} x^3 \, dx}{b \log (f)}\\ &=-\frac{f^{a+b x^2} x^2}{b^2 \log ^2(f)}+\frac{f^{a+b x^2} x^4}{2 b \log (f)}+\frac{2 \int f^{a+b x^2} x \, dx}{b^2 \log ^2(f)}\\ &=\frac{f^{a+b x^2}}{b^3 \log ^3(f)}-\frac{f^{a+b x^2} x^2}{b^2 \log ^2(f)}+\frac{f^{a+b x^2} x^4}{2 b \log (f)}\\ \end{align*}
Mathematica [A] time = 0.0084153, size = 41, normalized size = 0.66 \[ \frac{f^{a+b x^2} \left (b^2 x^4 \log ^2(f)-2 b x^2 \log (f)+2\right )}{2 b^3 \log ^3(f)} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.007, size = 40, normalized size = 0.7 \begin{align*}{\frac{ \left ({b}^{2}{x}^{4} \left ( \ln \left ( f \right ) \right ) ^{2}-2\,b{x}^{2}\ln \left ( f \right ) +2 \right ){f}^{b{x}^{2}+a}}{2\, \left ( \ln \left ( f \right ) \right ) ^{3}{b}^{3}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.16652, size = 63, normalized size = 1.02 \begin{align*} \frac{{\left (b^{2} f^{a} x^{4} \log \left (f\right )^{2} - 2 \, b f^{a} x^{2} \log \left (f\right ) + 2 \, f^{a}\right )} f^{b x^{2}}}{2 \, b^{3} \log \left (f\right )^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.53527, size = 100, normalized size = 1.61 \begin{align*} \frac{{\left (b^{2} x^{4} \log \left (f\right )^{2} - 2 \, b x^{2} \log \left (f\right ) + 2\right )} f^{b x^{2} + a}}{2 \, b^{3} \log \left (f\right )^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.124658, size = 54, normalized size = 0.87 \begin{align*} \begin{cases} \frac{f^{a + b x^{2}} \left (b^{2} x^{4} \log{\left (f \right )}^{2} - 2 b x^{2} \log{\left (f \right )} + 2\right )}{2 b^{3} \log{\left (f \right )}^{3}} & \text{for}\: 2 b^{3} \log{\left (f \right )}^{3} \neq 0 \\\frac{x^{6}}{6} & \text{otherwise} \end{cases} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.27472, size = 58, normalized size = 0.94 \begin{align*} \frac{{\left (b^{2} x^{4} \log \left (f\right )^{2} - 2 \, b x^{2} \log \left (f\right ) + 2\right )} e^{\left (b x^{2} \log \left (f\right ) + a \log \left (f\right )\right )}}{2 \, b^{3} \log \left (f\right )^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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